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Mixture-of-Experts (MoE) models scale more effectively than dense models due to sparse computation through expert routing, selectively activating only a small subset of expert modules. However, sparse computation challenges traditional…

Mixture-of-Experts (MoE) activates only a subset of experts during inference, allowing the model to maintain low inference FLOPs and latency even as the parameter count scales up. However, since MoE dynamically selects the experts, all the…

Machine Learning · Computer Science 2025-05-27 Shibo Jie , Yehui Tang , Kai Han , Yitong Li , Duyu Tang , Zhi-Hong Deng , Yunhe Wang

Sparse models, including sparse Mixture-of-Experts (MoE) models, have emerged as an effective approach for scaling Transformer models. However, they often suffer from computational inefficiency since a significant number of parameters are…

Machine Learning · Computer Science 2024-05-27 Yuanhang Yang , Shiyi Qi , Wenchao Gu , Chaozheng Wang , Cuiyun Gao , Zenglin Xu

Mixture-of-Experts (MoE) models can achieve promising results with outrageous large amount of parameters but constant computation cost, and thus it has become a trend in model scaling. Still it is a mystery how MoE layers bring quality…

Machine Learning · Computer Science 2021-08-10 An Yang , Junyang Lin , Rui Men , Chang Zhou , Le Jiang , Xianyan Jia , Ang Wang , Jie Zhang , Jiamang Wang , Yong Li , Di Zhang , Wei Lin , Lin Qu , Jingren Zhou , Hongxia Yang

Despite their practical success, it remains unclear why Mixture of Experts (MoE) models can outperform dense networks beyond sheer parameter scaling. We study an iso-parameter regime where inputs exhibit latent modular structure but are…

Machine Learning · Computer Science 2026-01-22 Dong Sun , Rahul Nittala , Rebekka Burkholz

In the era of large language models, Mixture-of-Experts (MoE) is a promising architecture for managing computational costs when scaling up model parameters. However, conventional MoE architectures like GShard, which activate the top-$K$ out…

Training large-scale Mixture-of-Experts (MoE) models typically requires high-memory, high-bandwidth GPUs (e.g., A100), and their high cost has become a major barrier to large-model training. In contrast, affordable hardware is low-cost but…

Machine Learning · Computer Science 2026-01-13 Xin Ye , Daning Cheng , Boyang Zhang , Yunquan Zhang

Mixture-of-experts (MoE) is becoming popular due to its success in improving the model quality, especially in Transformers. By routing tokens with a sparse gate to a few experts (i.e., a small pieces of the full model), MoE can easily…

Machine Learning · Computer Science 2022-10-11 Xiaonan Nie , Xupeng Miao , Shijie Cao , Lingxiao Ma , Qibin Liu , Jilong Xue , Youshan Miao , Yi Liu , Zhi Yang , Bin Cui

Sparse Mixture-of-Experts (MoE) models offer a powerful way to scale model size without increasing compute, as per-token FLOPs depend only on k active experts rather than the total pool of E experts. Yet, this asymmetry creates an MoE…

Machine Learning · Computer Science 2026-05-15 Linghao Jin , Chufan Shi , Huijuan Wang , Nuan Wen , Zhengzhong Liu , Eric Xing , Xuezhe Ma

The Mixture-of-Experts (MoE) model has emerged as a prominent architecture in the field of Large Language Models (LLMs), providing a better balance between model performance and computational efficiency. However the General Matrix Multiply…

Computation and Language · Computer Science 2025-01-06 Yulei Qian , Fengcun Li , Xiangyang Ji , Xiaoyu Zhao , Jianchao Tan , Kefeng Zhang , Xunliang Cai

Recently, inspired by the concept of sparsity, Mixture-of-Experts (MoE) models have gained increasing popularity for scaling model size while keeping the number of activated parameters constant. In this study, we thoroughly investigate the…

Computation and Language · Computer Science 2024-11-26 Xiaoye Qu , Daize Dong , Xuyang Hu , Tong Zhu , Weigao Sun , Yu Cheng

We present DeepSeek-V2, a strong Mixture-of-Experts (MoE) language model characterized by economical training and efficient inference. It comprises 236B total parameters, of which 21B are activated for each token, and supports a context…

Computation and Language · Computer Science 2024-06-21 DeepSeek-AI , Aixin Liu , Bei Feng , Bin Wang , Bingxuan Wang , Bo Liu , Chenggang Zhao , Chengqi Dengr , Chong Ruan , Damai Dai , Daya Guo , Dejian Yang , Deli Chen , Dongjie Ji , Erhang Li , Fangyun Lin , Fuli Luo , Guangbo Hao , Guanting Chen , Guowei Li , H. Zhang , Hanwei Xu , Hao Yang , Haowei Zhang , Honghui Ding , Huajian Xin , Huazuo Gao , Hui Li , Hui Qu , J. L. Cai , Jian Liang , Jianzhong Guo , Jiaqi Ni , Jiashi Li , Jin Chen , Jingyang Yuan , Junjie Qiu , Junxiao Song , Kai Dong , Kaige Gao , Kang Guan , Lean Wang , Lecong Zhang , Lei Xu , Leyi Xia , Liang Zhao , Liyue Zhang , Meng Li , Miaojun Wang , Mingchuan Zhang , Minghua Zhang , Minghui Tang , Mingming Li , Ning Tian , Panpan Huang , Peiyi Wang , Peng Zhang , Qihao Zhu , Qinyu Chen , Qiushi Du , R. J. Chen , R. L. Jin , Ruiqi Ge , Ruizhe Pan , Runxin Xu , Ruyi Chen , S. S. Li , Shanghao Lu , Shangyan Zhou , Shanhuang Chen , Shaoqing Wu , Shengfeng Ye , Shirong Ma , Shiyu Wang , Shuang Zhou , Shuiping Yu , Shunfeng Zhou , Size Zheng , T. Wang , Tian Pei , Tian Yuan , Tianyu Sun , W. L. Xiao , Wangding Zeng , Wei An , Wen Liu , Wenfeng Liang , Wenjun Gao , Wentao Zhang , X. Q. Li , Xiangyue Jin , Xianzu Wang , Xiao Bi , Xiaodong Liu , Xiaohan Wang , Xiaojin Shen , Xiaokang Chen , Xiaosha Chen , Xiaotao Nie , Xiaowen Sun , Xiaoxiang Wang , Xin Liu , Xin Xie , Xingkai Yu , Xinnan Song , Xinyi Zhou , Xinyu Yang , Xuan Lu , Xuecheng Su , Y. Wu , Y. K. Li , Y. X. Wei , Y. X. Zhu , Yanhong Xu , Yanping Huang , Yao Li , Yao Zhao , Yaofeng Sun , Yaohui Li , Yaohui Wang , Yi Zheng , Yichao Zhang , Yiliang Xiong , Yilong Zhao , Ying He , Ying Tang , Yishi Piao , Yixin Dong , Yixuan Tan , Yiyuan Liu , Yongji Wang , Yongqiang Guo , Yuchen Zhu , Yuduan Wang , Yuheng Zou , Yukun Zha , Yunxian Ma , Yuting Yan , Yuxiang You , Yuxuan Liu , Z. Z. Ren , Zehui Ren , Zhangli Sha , Zhe Fu , Zhen Huang , Zhen Zhang , Zhenda Xie , Zhewen Hao , Zhihong Shao , Zhiniu Wen , Zhipeng Xu , Zhongyu Zhang , Zhuoshu Li , Zihan Wang , Zihui Gu , Zilin Li , Ziwei Xie

Mixture of Experts (MoE) models have emerged as a promising paradigm for scaling language models efficiently by activating only a subset of parameters for each input token. In this report, we present dots.llm1, a large-scale MoE model that…

While modern internet services, such as chatbots, search engines, and online advertising, demand the use of large-scale deep neural networks (DNNs), distributed training and inference over heterogeneous computing systems are desired to…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-08-13 Dianhai Yu , Liang Shen , Hongxiang Hao , Weibao Gong , Huachao Wu , Jiang Bian , Lirong Dai , Haoyi Xiong

Scaling large language models (LLMs) significantly improves performance but comes with prohibitive computational costs. Mixture-of-Experts (MoE) models offer an efficient alternative, increasing capacity without a proportional rise in…

Machine Learning · Computer Science 2024-12-16 Aditya Vavre , Ethan He , Dennis Liu , Zijie Yan , June Yang , Nima Tajbakhsh , Ashwath Aithal

Dense Retrieval Models (DRMs) are a prominent development in Information Retrieval (IR). A key challenge with these neural Transformer-based models is that they often struggle to generalize beyond the specific tasks and domains they were…

Information Retrieval · Computer Science 2025-10-20 Effrosyni Sokli , Pranav Kasela , Georgios Peikos , Gabriella Pasi

Mixture of Experts (MoE) LLMs, characterized by their sparse activation patterns, offer a promising approach to scaling language models while avoiding proportionally increasing the inference cost. However, their large parameter sizes…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 Yichao Yuan , Lin Ma , Nishil Talati

Sparse Mixture-of-Experts (MoE) allows scaling of language and vision models efficiently by activating only a small subset of experts per input. While this reduces computation, the large number of parameters still incurs substantial memory…

We present Marco-MoE, a suite of fully open multilingual sparse Mixture-of-Experts (MoE) models. Marco-MoE features a highly sparse design in which only around 5\% of the total parameters are activated per input token. This extreme…

Computation and Language · Computer Science 2026-04-29 Fan Jiang , Yu Zhao , Chenyang Lyu , Tianqi Shi , Yichao Du , Feihu Jiang , Longyue Wang , Weihua Luo

Mixture-of-Experts (MoE) has garnered significant attention for its ability to scale up neural networks while utilizing the same or even fewer active parameters. However, MoE does not alleviate the massive memory requirements of networks,…

Machine Learning · Computer Science 2026-04-21 Mingyu Cao , Gen Li , Jie Ji , Jiaqi Zhang , Ajay Jaiswal , Li Shen , Xiaolong Ma , Shiwei Liu , Lu Yin